Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 918 [Rate centres in NPA 918] [Dial plan for NPA 918]

NXX: 317

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
918-317 A Broken Arrow OK   409F ONVOY, LLC - OK 538      
918-317 2 Broken Arrow OK   409F ONVOY, LLC - OK 538      
918-317 3 Broken Arrow OK   145J TERRA NOVA TELECOM INC. 538   2025-12-01   
918-317 4 Broken Arrow OK   409F ONVOY, LLC - OK 538      
918-317 6 Broken Arrow OK   409F ONVOY, LLC - OK 538      
918-317 7 Broken Arrow OK   409F ONVOY, LLC - OK 538      

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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